From 2f1f04f7cb521f175a6d4ce45c6a71e9e5d7a370 Mon Sep 17 00:00:00 2001
From: Sadie Powell <sadie@witchery.services>
Date: Mon, 16 Feb 2026 00:55:08 +0000
Subject: [PATCH] Short circuit empty format strings in Anope::Format.

This fixes a bug where Anope would loop infinitely when passed an
empty format string.
---
 src/misc.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/misc.cpp b/src/misc.cpp
index 26db9ba65..650e5ccc5 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -783,6 +783,9 @@ Anope::string Anope::Format(const char *fmt, ...)
 
 Anope::string Anope::Format(va_list &valist, const char *fmt)
 {
+	if (!fmt || !fmt[0])
+		return "";
+
 	static std::vector<char> buffer(512);
 	while (true)
 	{